In Paleo Hebrew Ba was drawn as a House. The House concept shows up throughout the books of (2) Exodus, (24) Haggai and (46) First Thessalonians. By studying House in these books all of Ba's meanings can be learned.
Ba is:
Words with Ba include:
When prefixed to a word Ba is the preposition "in", "into," "on", or "upon." The grammatical use of Ba is consistent with it's meaning. A house sits "on" land. People go "into" a house.
Jesus is pictured as the House.
52 Ephesians 2:19-22
19Thus, from now on, you are neither strangers nor foreigners, but fellow-citizens with the saints and children of the house of God;
20and you are built on the foundation of the apostles and prophets, Jesus Messiah himself being the cornerstone of the building.
21And through him, the whole building is fashioned and grows into a holy temple, through the help of Master.
22You are also built by him for a habitation of God, through the Spirit.
There may be a better passage for showing how Jesus is the Ba.
The strokes used to draw the letter Ba are described fairly well in a couple stories early in the book of Exodus beginning with the story where Moses is hidden for 3 months.
2 Exodus 2:2
2And the woman conceived and bore a son; and when she saw that he was a handsome boy, she hid him for 3 months.
This verse gives us the first 3 strokes that make the triangle or house part of Ba. The first stroke sideways from right to left, the second up to the tip (for month 2) and the third down from the tip to the right side to close the triangle.
The story goes on to say that Moses was placed in a basket and put in the river. Then Pharaoh's daughter and her maids come to the river and provide the last 3 strokes needed to complete Ba.
2 Exodus 2:5
5And the daughter of Pharaoh came down to bathe in the river; and her maids walked along by the river's side; and when she saw the ark among the reeds, she sent her maids to fetch it.
Pharoah's daughter goes "down" into the river. She represents a 1 unit line segment connecting from the last stroke at the bottom right side of the house and extending at the same angle to the final bottom right side of what is almost a comlete Ba. The maids (plural) which means at least 2, walk along the bank of the river, which means a final line segment 2 units long that goes sideways across the bottom of the house. And now you have a Ba. It's really only 4 strokes, but the story gives us a bit of geometry too by relating that it takes 6 1 unit line lengths to make Ba.
Learning to draw a new letter requires a little practice, so the next story in Exodus runs the steps again.
2 Exodus 2:11-13
11And it came to pass in those days, when Moses was grown up, that he went out among his brothers, and saw their oppression; and he saw an Egyptian beating a Hebrew, one of his brothers of the children of Israel.
12And he looked this way and that way, and when he saw that there was no man watching, he slew the Egyptian and hid him in the sand.
13And when he went out the 2nd day, he looked, and saw 2 Hebrew men were quarreling together; and he said to him who did the wrong, Why do you beat your fellow?
This time we begin with Moses going "outside." So he left the house, which is the triangle in the upper half of Ba. Then he finds 1 Hebrew and an Egpytian beating him. Moses kills and buries the Egyptian in the sand (which is our 1 unit downstroke that attaches to the bottom right corner of the house and extends to the very bottom of Ba). The next day Moses finds 2 Hebrews. These guys are the same so they are the 2 unit line segment running from the right to left side along the bottom of Ba.